An interlayer film for laminated glass that has a one-layer structure or a two or more layer-structure includes a first layer containing a thermoplastic resin. The first layer may have a glass transition temperature of 10 C. or lower and the inter layer film may have an equivalent stiffness of 2.4 MPa or greater at 25 C.

A resin film for laminated glass, laminated glass including the resin film, and a process for manufacturing the laminated glass are disclosed. The resin film for laminated glass comprises a resin layer comprising a polyvinyl acetal resin and a contact surface in direct contact with glass, wherein the contact surface has an Rz roughness of 25 to 90 m and a maximum static friction coefficient at 20 C. of 0.85 to 1.60, and the compressive elastic deformation index measured in the perpendicular direction from the contact surface at 35 C. is 40 to 310 m/N.

There is provided an interlayer film for laminated glass with which a low yellow index value, low excitation purity and high heat shielding properties can be achieved in spite of the thickness varying with places. The interlayer film for laminated glass according to the present invention has a two or more-layer structure, has a thickness of one end thinner than a thickness of the other end at the opposite side of the one end and includes a first layer containing a thermoplastic resin and a second layer containing a thermoplastic resin, the difference between the maximum thickness and the minimum thickness in the first layer is smaller than the difference between the maximum thickness and the minimum thickness in the second layer, and the first layer contains a heat shielding compound.

There is provided an interlayer film for laminated glass with which laminated glass having a gradation pattern with suppressed color irregularity can be prepared. The interlayer film for laminated glass according to the present invention is provided with a dark color part, a gradation part and a transparent part, allows laminated glass prepared with two sheets of clear glass to have a parallel light transmittance in a portion of the dark color part less than or equal to 30%, allows the parallel light transmittance in a portion of the gradation part to be continuously increased from the dark color part side to the transparent part side, allows the laminated glass to have a parallel light transmittance in a portion of the transparent part greater than or equal to 60%, allows each of the dark color part, the gradation part and the transparent part to have a first resin layer and allows each of the dark color part and the gradation part to have a second resin layer or allows each of the dark color part, the gradation part and the transparent part to have a second resin layer and allows each of the gradation part and the transparent part to have a first resin layer, and furthermore, allows the thickness of the second resin layer in the gradation part to be continuously decreased from the dark color part side to the transparent part side.

There is provided an interlayer film for laminated glass enabling the laminated glass to have low transmittance for a light ray with a wavelength of 430 nm, and furthermore, being capable of achieving low excitation purity thereof. The interlayer film for laminated glass according to the present invention includes a thermoplastic resin, at least one first compound selected from yellow color-based coloring matter and red color-based coloring matter and at least one second compound selected from blue color-based coloring matter and purple color-based coloring matter, the ratio of the amount of the first compound to the amount of the second compound is 0.5 or more, and each of the blue color-based coloring matter and the purple color-based coloring matter is a kind of coloring matter with a maximum absorption wavelength of 550 nm or more and 750 nm or less.

A conductive film, a photovoltaic cell unit, and a photovoltaic cell module are disclosed. The conductive film adapted to electrically connect two adjacent photovoltaic cells in series includes at least one wire, a light transmissive layer, and a light transmissive resin layer, the light transmissive layer covers the wire, and the light transmissive resin layer is at least disposed between the wire and the light transmissive layer.

Embodiments relate to a resin film for laminated glass, laminated glass comprising the resin film, and a process for manufacturing the laminated glass. The resin film for laminated glass comprises a resin layer comprising a polyvinyl acetal resin and a contact surface in direct contact with glass, wherein the contact surface has an Rz roughness of 25 to 90 m and a maximum static friction coefficient at 20 C. of 0.85 to 1.60, and the compressive elastic deformation index measured in the perpendicular direction from the contact surface at 35 C. is 40 to 310 m/N.

Provided is an interlayer film for laminated glass capable of enhancing the handling property of the interlayer film, and suppressing poor appearance of the laminated glass. An interlayer film for laminated glass according to the present invention contains a thermoplastic resin, the interlayer film for laminated glass has one end and other end being on an opposite side of the one end, the other end has a thickness larger than a thickness of the one end, a surface resistivity at the one end of the interlayer film after standing is 9.510.sup.13 or less when the interlayer film has been left to stand for 7 days at 10 C. and relative humidity of 50%, and a surface resistivity at the other end of the interlayer film after standing is smaller than the surface resistivity at the one end of the interlayer film after standing.

There is provided an interlayer film for laminated glass with which the visible light transmittance and the heat resistance of the laminated glass can be heightened. The interlayer film for laminated glass according to the present invention includes an organic coloring matter containing a transition element, a metal element which is different from a metal element contained in a metal oxide particle and different from a transition element, a thermoplastic resin and a plasticizer.

Provided is laminated glass capable of preventing generation of a void in the interlayer film in an end part of laminated glass, and keeping the appearance of laminated glass excellent. Laminated glass according to the present invention is laminate glass including a first lamination glass member, a second lamination glass member, and an interlayer film containing a thermoplastic resin, and no void is generated in the interlayer film irradiated with light in an end part of the laminated glass after a first light irradiation test: conducting 4 cycles each cycle including the process of irradiating the laminated glass with xenon light 180 W/m.sup.2 at a black panel temperature of 83 C. and a humidity of 50% RH for 144 hours, and dipping the laminated glass in pure water at 80 C. for 24 hours, or a void is generated within a length of 1 mm or less inwardly from an end part of the interlayer film irradiated with light in the end part of the laminated glass after the first light irradiation test.